Answer: 1.43 h
Step-by-step explanation:
Velocity is is defined as the change in position (displacement) of an object in a specific time :
Where:
is the car's velocity
is the distance the winner car traveled
is the time
Isolating :
Solving with the given information:
This is the winner's time
m = 0
Step-by-step explanation:
If it's written in y =mx + c form, x is 0 and so is m.
Thus, m should be 0
Answer:
Variant D
Step-by-step explanation:
-2*(-2)*(-2)*(-2)=16
Answer:
5.12 seconds to the nearest hundredth.
Step-by-step explanation:
When the ball hits the ground h = 0 so
-16t^2 + 81t + 5 = 0
t = [ -81 +/- sqrt ((81^2 - 4 * -16 * 5)]/ (2*-16)
= (-81 +/- sqrt 6881) / -32
= 5.12 , -0.6
So the answer is 5.123 seconds.
the answer is actually 9 because you add 45 and 18 together and get 63. Finally you divide 63/9 and get 7.